Automatic railroad-crossing gate



May 20, 1930. v. GALIZIA v AUTOIATIO RAILROAD CROSSINQGATE lFiled Aug. 18, 1927 Sheets-Sheet 1 INVENToR.

May 20,1930.` i I' U v. GALIZIA 1,759,742`

AUTon'rIc RAILROAD COSSING GATE Filed Aug. 1a, 192'?- s snestsQsneet 2 I ZZ I'NVEN'TOR.

\ n' l z/f Ganga@ f LL f ATTQRNEYJ;

May 20, 1930. v v. GALIZIA ,AUTOIATIC RAlLRDAD CROSSING GATE Filed Aug. 18, 1927 :s sheets-sheet 5 9 zo INVENTOR.

v BY 6) cables 2.2 ofwgates 7 andk will woundv uponV the associated Vwinding .Y drums 21Y for raising said gates7 and 8 to closed posin quently gates tion, a like operationtaking place with respect to gates in.. one direction. Obviously,

lshaft turning 11 H t w1 efec reversing of the` motors `9= and14` .unwinding of the cables for permitting lowering ofthe gates respectivelyoperated ,there-V.

by, gearings to open position. j As'showmthe sprocket `,24 and 25`extend transversely of and beneath the Y vvIt is intended that the'motor 9,and conse-y and thatvopera'tion'of motor 14 andc'onse'- quentlygates12'and 13 be controlledby trame y' moving-on track throughactuation of track Switches'l and 16. As the controlling means forV :eachy motor andfitsl associated pair` of gatesiis'the same, specific description of one will suffice forb'oth. V"SAS shown inFigure 4,

' thejtrack vswitches are. normally opened; and

each includesa casing'26 within which are mounted a pair of spacedfcontacts 27 and 28 havingV overlapping ends and normally@ tenl` sionedto separate*` Slidably mounted through the top of Ythe :casing 26' is a nor# mallyY raised spring'` 4pressed 1 plunger 29 adapted to be forced downwardly `to 'f'rzauseV engagement of contact27 with contact 28, and overlying 'the plunger 29' is the higher vend of a pivoted ramp 30 adapted to'be depressed lby the iiange of the car wheels passing there-l V, 4over;foiydepressing'plunger 29 and engag,v ingV contact 27 withc'ontactr28. A suitableV strong spring 31 is provided beneath ramp 30V tornormally holding the same -in' raised position.- As shown in Figur'ef 5,.theV con'- ductor-32lto one return terminal `of'anotor l9, vthecooperatingfeed 'terminal Y of 'which Vis connected by1conduct'orj33. with the posin tivefsideof afsuit'able source of electricity 34.

v`Mountediwithin one of thepillars. 18 in the' 5c.'

v,cent .endfof gate?, isfa'snap switch 37, one V terminalof'which is connected bycond'u'ctor l38 to the'fnegativesideofv the s,o11rce.34,'and

path of projections35'fand 36 .on the adjaf theother terminal offwhichis connectedl by y, conductor "39 with contact V28V of Switch 10. It will of course be understood-that theop- V"erating Alever offswitch 37 vis the,part;which I isreally inthe pathl of the lugsf35 and 36,

and the switch 37 vis VVso arranged that when theoperatinglever thereof. is swung down- Wardly connection between .conductors 38 and l z3`9is'made fand when .said leveris swung upwardly thelconnection s broken. j vWhenlfthe [gate V7 is loweredthe'switch 37 is Y engaged by lug`36 to close switch 37 and when Thus,

12'and 13 when the motor -14 is placed into operation-with its armature s traCkS, vvvhileftlie inotorsf'9 vand 14 are located insnitablepitsbesidgthe j f(and 8, be controlled: by traiiic s moving upon the' tracks 5 throughactuation ofthe switcheslQand 11 bythe carwheels,

contacts 27and 28 are 'engaged byoperation l I i* of switch 10, dueto approach" of a .train to switch 37 to throw'the motor 9 outgof operation.- The otherV feed-terminalv 'of motor-9 is connected to the positive side of the source by meansofa Yconductor 40, andthe other return'terminal of said motor'9 is connected .thecrossing on track from the left otiFigv *Y ure 1, the motor 9 will be placed intoo'pera- L tion for raising gates 7 and 8andassoon as said gates are raised, the lug 35..,vvillopen Y 'Y by'conductor 41 with the Acontact 27k of switch llfwhose other contact 28 is connected byconi ductor'42to one termina-ly oi asv'vlitch 43 simij i d lar to switch 37. This switch 43 is mountedin vthe other Vpillar 18r at the opposite end ofgatey 'E withitsiever in the path of vlugs 44 and v45 'carried byV the adjacent endfoffgate', andthe f other terminal ot said switch 43 is connected-K byconductor 47 with the return side` ofthe source=34. The switch 43 'is 'soarrangedfthatso that when' the trainpasses the crossing and.

causes engagement of contacts-27 vand 28 of '920i I switch 11, the-motor-9 'willfbe'v placedf'into operation tor rotating in' Vaieverse direction land'unwindingthe cablestoflower'gates 7 and- 8.Vv WhenthegateV 7 flowersto open'posi-v tion, the lug 4`6will1engagethe lever ofswitch v'43 to open said switch and break the connection between conductors 42 and 47 VvvherebyV the motor 9is stopped atgethe 'proper'time Y when.switch?37V is lagainl closed by engage- Vment oflug 36with the lever Voftheflatten ,Obviously, switchesfsimilar to* 'switchesv 37 ico and4'3fare similarly/associated'with gate 12 switches `1,5 and 16 Y as explained'relative to the controloffmotor 9by switches 10 andll. "i vFurtheigfwheiionly one track i's'encountered,

suchas the trackl, the gates 8 and 12 will Vbe mounted adj acent` the opposite.. side of said track from .whic`h-jgates7 and'13lare disposed,

and the switchesV 15 "and'li Vwill beV mounted 'im adj a'centV the-,raill and track 5.othefr thanv that adj acent whichthe swtclies'l() 'and'llare disposed, ineitherlrcase,V the'y ramps of switchesw 10 and 11 projectinanopposite direction. ,y i

romithatoi the ramps of switches 15and 16. @215 'lvlountedfcentra'lly of the'roadwayfat oppo- 4site-'sides'i"of the tracks are posts. 48 having KVand the Vmoto`r`14 issimilarly controlled by signal lamps 49 mounted upon the upper ends one ofthe terminals of the` other lamp 49.

The remaining terminal of said other lamp 49 v j, when the gate 7 is raisedylugll will close the f il. switch 43 and connect conductors 42and-47 I Y is connected to the negative side of the Source 'A i 52, and it will thus be seen that-when a train approaches the crossing on either track, a

switch or 51 will be closed yfor lighting the p lamps49 and giving a visible warning that the train is approaching the crossing andy that the gatesare about to be closed.

The `construction and operation will be readily apparent from the foregoing description, and minor changes may be made without departing from the spirit and scope of the invention as claimed.

What I claim as new is e Apair kof railroad crossing gatesl constructed and adapted to be automaticallylowered belowthe surface of the roadwayto open position and automatically raised above the roadway to closed position, and comprising each a pair of hollow pillars lsunk below Athe roadway and rising above the same, said pillars having slotted inner sides, a gate structure havinga frame work with top and bottom rails projecting through the slots and vertically slidable therein, pulleys mounted within and at the upper ends of said pillars, cables passing over said ypulleys and attached to' said gate, a 'horizontal shafty passing through` said pillars below the roadway,

` winding ydrums mounted on `said shaft and connected with said shaft, and with train controlled devices, whereby'said gate is raised having wound thereon said cables, and means and lowered by the passing ofa; train over .said devices and means including sprocket 'I wheels and chains whereby operative movement is conveyed from the motor shaft of one gate to the other gate;

[n testimony whereof I affix my signature. VITO GALIZIA. 

